Research Preview: Claude Duet

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A research preview of Claude Duet is opening, a new app where Claude works as a proactive agent.

✓ Confirmed by an official source · Official source

Official post

We’re opening a research preview of Claude Duet, a new app where Claude works as a proactive agent.

It comes to you with what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.
— @claudeai Oct 21, 2026